EAT-Lancet Diet, Chronotype, and Well-Being in Obesity

NCT ID: NCT07168967

Last Updated: 2025-09-11

Basic Information

• Recruitment Status: COMPLETED
• Total Enrollment: 97 participants
• Study Classification: OBSERVATIONAL
• Study Start Date: 2024-09-01
• Study Completion Date: 2024-12-01

Brief Summary

The aim of this study is to examine the relationship between the Planetary Health Diet (EAT-Lancet) dietary pattern, chronotype, and psychological well-being in obese individuals. A total of 97 individuals diagnosed with obesity were included in the study. A questionnaire form containing sociodemographic characteristics was administered to volunteers who agreed to participate in the study. In addition, participants' anthropometric measurements (body weight, height, waist and hip circumference, Body Mass Index (BMI)), biochemical parameters (fasting blood glucose, HbA1c, triglycerides, LDL-cholesterol, triglycerides, total cholesterol, C-reactive protein (CRP)), and nutritional status (food consumption record and frequency) were obtained. The Morningness-Eveningness Questionnaire was used to determine chronotype. The Psychological Well-Being Scale was used for psychological assessment.

Detailed Description

Mood disorders are common in obese individuals, and anxiety and depression often contribute to weight gain through emotional eating and inactivity. Therefore, including psychological support in obesity prevention and treatment programs is important for long-term weight loss goals. However, chronotype, which describes an individual's behavioral preferences such as sleep timing and eating, is also an important factor in determining both physical and mental health outcomes. An inappropriate chronotype has been associated with a more unfavorable body composition, poor mental health, and an increased risk of depression and anxiety. A review of the literature reveals no studies that simultaneously address the Planetary Health Diet (EAT-Lancet) dietary model, chronotype, and psychological well-being variables in obese individuals; this highlights the originality and necessity of the present study. The aim of this study is to examine the relationship between the EAT-Lancet dietary model, chronotype, and psychological well-being in obese individuals.

Conditions

Obesity

Study Design

• Observational Model Type: OTHER
• Study Time Perspective: PROSPECTIVE

Study Groups

Individuals with obesity

This cohort includes adult participants diagnosed with obesity (BMI ≥30 kg/m²). No control group is included.

No interventions assigned to this group

Eligibility Criteria

Inclusion Criteria

• Individuals over 19 years of age
• Individuals who are literate
• Individuals diagnosed with obesity

Exclusion Criteria

• Individuals who have had an acute infection or inflammatory disease within the past month
• Individuals with chronic infectious or inflammatory diseases
• Individuals with cancer

• Minimum Eligible Age: 19 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Abant Izzet Baysal University

OTHER

Sponsor Role: lead

Responsible Party

Nurefşan KONYALIGİL ÖZTÜRK

Assist. Prof. Dr

Responsibility Role: PRINCIPAL_INVESTIGATOR

Principal Investigators

Nurefşan Konyalıgil Öztürk

Role: PRINCIPAL_INVESTIGATOR

Abant Izzet Baysal University

Locations

Bolu Abant İzzet Baysal University, Faculty of Health Sciences

Bolu, , Turkey (Türkiye)

Countries

Turkey (Türkiye)

Other Identifiers

AIBU-BD-NKÖ-02

Identifier Type: -

Identifier Source: org_study_id